/* ============================================================
   layout.css — container, header, nav, footer
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-inline: var(--container-px);
}

/* Mobile-first defense: prevent flex/grid items from overflowing parents.
   Without this, long words, monospaced strings, or fixed-width children
   can push the page wider than the viewport. */
.section,
.section > .container,
.hero__inner,
.sobre__inner,
.metodo__grid,
.planos__grid,
.social__grid,
.faq__inner,
.contato__grid {
  min-width: 0;
}

main {
  position: relative;
  z-index: 1;
}

/* ============================================================
   HEADER (mobile-first)
   ============================================================ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-header);
  padding: var(--sp-3) 0; /* mobile default — compact */
  background: transparent;
  transition:
    background-color var(--dur-base) var(--ease-out),
    backdrop-filter var(--dur-base) var(--ease-out),
    padding var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out);
  border-bottom: 1px solid transparent;
}

@media (min-width: 768px) {
  .header { padding: var(--sp-4) 0; }
}
@media (min-width: 1024px) {
  .header { padding: var(--sp-5) 0; }
}

.header.is-scrolled {
  padding: var(--sp-2) 0;
  background: color-mix(in srgb, var(--bg-page) 88%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--border-soft);
}
@media (min-width: 1024px) {
  .header.is-scrolled { padding: var(--sp-3) 0; }
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  min-width: 0;
}

/* ---------- LOGO (B5 + B6) — mobile-first ---------- */
.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
  min-width: 0;
  transition: transform var(--dur-fast) var(--ease-out);
}
.logo:hover { transform: translateY(-1px); }

.logo__img {
  height: 38px;          /* mobile default — predictable, not max- */
  width: auto;
  max-width: 100%;
  object-fit: contain;
  filter: var(--logo-filter, none) drop-shadow(0 2px 6px rgba(0, 0, 0, 0.4));
  transition:
    filter var(--dur-base) var(--ease-out),
    height var(--dur-base) var(--ease-out);
}
@media (min-width: 768px) {
  .logo__img { height: 44px; }
}
@media (min-width: 1024px) {
  .logo__img { height: 52px; }
}

[data-theme="light"] .logo__img {
  filter: drop-shadow(0 2px 4px rgba(15, 15, 18, 0.15));
}

.logo__text {
  display: none;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--text-primary);
}

@media (min-width: 720px) {
  .logo__text { display: inline-block; }
}

/* ---------- DESKTOP NAV ---------- */
.nav {
  display: none;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  color: var(--text-tertiary);
  border-radius: var(--r-pill);
  transition:
    color var(--dur-fast) var(--ease-out),
    background-color var(--dur-fast) var(--ease-out);
}

.nav__link:hover { color: var(--text-primary); }

.nav__link.is-active {
  color: var(--text-primary);
  background: color-mix(in srgb, var(--brand-accent) 10%, transparent);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 6px; left: 50%;
  width: 0; height: 2px;
  background: var(--brand-accent);
  transform: translateX(-50%);
  transition: width var(--dur-fast) var(--ease-out);
}

.nav__link:hover::after,
.nav__link.is-active::after {
  width: 22px;
}

/* ---------- HEADER ACTIONS ---------- */
.header__actions {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
}

@media (min-width: 1024px) {
  .nav { display: block; }
}

/* ============================================================
   MOBILE MENU OVERLAY (B2 + B3 defenses)
   Single fullscreen overlay. Solid background. No backdrop layer.
   ============================================================ */
.menu-toggle {
  position: relative;
  width: 44px; height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-md);
  color: var(--text-primary);
  background: transparent;
  border: 1px solid var(--border-soft);
  transition:
    background-color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
  /* Header z-index keeps X always tappable */
}
.menu-toggle:hover {
  background: color-mix(in srgb, var(--brand-accent) 8%, transparent);
  border-color: var(--border-medium);
}

.menu-toggle__bar {
  position: absolute;
  left: 12px; right: 12px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition:
    transform var(--dur-base) var(--ease-out),
    opacity var(--dur-fast) var(--ease-out),
    top var(--dur-base) var(--ease-out);
}
.menu-toggle__bar--1 { top: 14px; }
.menu-toggle__bar--2 { top: 21px; }
.menu-toggle__bar--3 { top: 28px; }

.menu-toggle[aria-expanded="true"] .menu-toggle__bar--1 {
  top: 21px; transform: rotate(45deg);
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar--2 {
  opacity: 0;
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar--3 {
  top: 21px; transform: rotate(-45deg);
}

@media (min-width: 1024px) {
  .menu-toggle { display: none; }
}

/* ---------- MOBILE NAV OVERLAY ---------- */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: var(--z-mobile-nav);
  background: var(--bg-page); /* SOLID, not translucent */
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  padding: 92px var(--container-px) var(--sp-7);
  opacity: 0;
  transform: translateY(-12px);
  pointer-events: none;
  transition:
    opacity var(--dur-base) var(--ease-out),
    transform var(--dur-base) var(--ease-out);
  overflow-y: auto;
}

.mobile-nav.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  margin-top: var(--sp-4);
}

.mobile-nav__link {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: var(--sp-5) var(--sp-2);
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 500;
  letter-spacing: var(--tracking-tight);
  text-transform: uppercase;
  color: #FFFFFF; /* B3 — explicit white, no color-mix */
  border-bottom: 1px solid var(--border-soft);
  transition:
    color var(--dur-fast) var(--ease-out),
    padding-left var(--dur-base) var(--ease-spring);
}

[data-theme="light"] .mobile-nav__link {
  color: var(--text-primary); /* dark color in light mode */
}

.mobile-nav__link:hover,
.mobile-nav__link:focus-visible {
  color: var(--brand-accent);
  padding-left: var(--sp-5);
}

.mobile-nav__counter {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-widest);
  color: var(--brand-accent);
  margin-left: auto;
}

.mobile-nav__cta {
  margin-top: var(--sp-7);
}

.mobile-nav__contact {
  margin-top: auto;
  padding-top: var(--sp-7);
  border-top: 1px solid var(--border-soft);
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

@media (min-width: 1024px) {
  .mobile-nav { display: none; }
}

@media (max-width: 480px) {
  .mobile-nav { width: 100%; border: 0; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  position: relative;
  padding: var(--sp-12) 0 var(--sp-6);
  background: var(--bg-deep);
  border-top: 1px solid var(--border-soft);
  color: var(--text-tertiary);
}

.footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--brand-accent), transparent);
  opacity: 0.5;
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-9);
  margin-bottom: var(--sp-9);
}

@media (min-width: 600px) {
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 960px) {
  .footer__grid { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr); }
}

.footer__title {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: var(--sp-5);
}

.footer__brand-text {
  margin-top: var(--sp-4);
  max-width: 36ch;
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.footer__list a {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
  transition: color var(--dur-fast) var(--ease-out);
}
.footer__list a:hover { color: var(--brand-accent); }

.footer__trust-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--border-medium);
  border-radius: var(--r-pill);
  font-size: var(--fs-xs);
  letter-spacing: var(--tracking-wide);
  color: var(--brand-accent);
  background: color-mix(in srgb, var(--brand-accent) 6%, transparent);
}

.footer__trust-badge::before {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--brand-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand-accent) 30%, transparent);
  flex-shrink: 0;
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--border-soft);
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

@media (min-width: 720px) {
  .footer__bottom {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.footer__legal {
  display: inline-flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
}

.footer__dev {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
}
.footer__dev a {
  color: var(--brand-accent);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
}
.footer__dev a:hover {
  color: var(--brand-accent-soft);
  text-decoration: underline;
  text-underline-offset: 4px;
}